Comparative Study of Fatty Acid Composition in Crude Vegetable Oils from Species Cultivated in Mato Grosso do Sul, Brazil

Autor: Érico Vinícius Rocha Sanches, Geovanna Vilalva Freire, Simone Reis Santos, Gláucia Braz Alcantra, João Batista Gomes de Souza

Publikováno v: Orbital: The Electronic Journal of Chemistry, Vol 15, Iss 2 (2023)

Soybean is the main oilseed cultivated in the Middle-west region of Brazil, once geoclimatic conditions favor its cultivation and underexplored species such as crambe, oilseed radish, and niger too. These species can be alternatives to eliminate the

Externí odkaz: https://doaj.org/article/c7dd171d81c74a619d2f13a22a0bf945

DEVELOPMENT OF ANALYTICAL METHODOLOGIES FOR THE DETERMINATION OF CHLORPYRYPHES IN AQUEOUS SAMPLES EMPLOYING THE DISPERSIVE LIQUID MICROEXTRACTION FOLLOWED BY HPLC-UV

Autor: João Batista Gomes de Souza, Leandro Honório, Mayara L. de Matos, Adão S. Oliveira

Publikováno v: Química Nova, Volume: 43, Issue: 1, Pages: 15-9, Published: 16 MAR 2020
Química Nova v.43 n.1 2020
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Vol 43, Iss 1, Pp 9-15 (2020)

The miniaturized extraction techniques use less aggressive methods to the environment, since they generate less waste and spend a minimum of organic solvents, besides having a good selectivity and specificity in the extractions. In this context, liqu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e929188f018ffc38e68654342c1fea4
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422020000100009&lng=en&tlng=en

A new voltammetric method for the simultaneous determination of the antioxidants TBHQ and BHA in biodiesel using multi-walled carbon nanotube screen-printed electrodes

Autor: Luiz Henrique Viana, Magno Aparecido Gonçalves Trindade, Adriana Garabini de Freitas Andrade, João Batista Gomes de Souza, Tatiane Alfonso de Araujo, Valdir Souza Ferreira, Ricardo Pini Caramit

Publikováno v: Fuel. 105:306-313

An electroanalytical method for the simultaneous detection and quantification of tert -butylhydroquinone (TBHQ) and butyl hydroxyanisole (BHA) in biodiesel was developed using a voltammetric technique and screen-printed electrodes. The supporting ele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27583fefac40124d786333dd9dbec319
https://doi.org/10.1016/j.fuel.2012.06.062

Determination of polycyclic aromatic hydrocarbons by gas chromatography — ion trap tandem mass spectrometry and source identifications by methods of diagnostic ratio in the ambient air of Campo Grande, Brazil

Autor: Nilva Ré Poppi, Jorge Luiz Raposo, Gisely Luzia Ströher, João Batista Gomes de Souza

Publikováno v: Microchemical Journal. 86:112-118

Polycyclic aromatic hydrocarbons (PAHs) were measured in samples collected from July to December of 2003, in Campo Grande — MS (Brazil), on three different sites: Ary Coelho Square (AC), Indigenous Nations' Park (NI) and Indubrasil (IB). Particle-b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46e3df4a722e7d1d0dbc183bb7e22a2d
https://doi.org/10.1016/j.microc.2006.12.003

Characterization of pyroligneous acid used in agriculture by gas chromatography-mass spectrometry

Autor: Nilva Ré-Poppi, João Batista Gomes de Souza, Jorge Luiz Raposo

Publikováno v: Journal of the Brazilian Chemical Society v.23 n.4 2012
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 23, Issue: 4, Pages: 610-617, Published: APR 2012

In this study, two kinds of samples of pyrolysis liquid were analyzed, one produced at laboratory and other acquired from a company that supplies agricultural inputs. The analyses were carried out by gas chromatography with flame ionization detector

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9a05f8f02c10262c69468ce0b03113b
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000400005